/* ============================================================
   projects.css — Projects listing page styles only.
   Imported exclusively by projects.html.
   ============================================================ */

/* ── Page header ───────────────────────────────────────────── */
.projects-header {
  padding-top: calc(var(--nav-height) + var(--sp-16));
  padding-bottom: var(--sp-10);
}

.projects-header__title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: var(--sp-4);
}

.projects-header__sub {
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.7;
}

/* ── Filter bar ────────────────────────────────────────────── */
.projects-filters {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding-block: var(--sp-5);
  position: sticky;
  top: var(--nav-height);
  z-index: 10;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.projects-filters .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

/* Category tabs */
.filter-tabs {
  display: flex;
  gap: var(--sp-2);
  flex-shrink: 0;
}

.filter-tab {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: transparent;
  cursor: pointer;
  transition: all var(--t-fast);
}

.filter-tab:hover {
  color: var(--text-secondary);
  border-color: var(--border-medium);
}

.filter-tab--active {
  color: var(--gold);
  border-color: var(--gold-border);
  background: var(--gold-dim);
}

/* Divider between tabs and tag pills */
.filter-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  flex-shrink: 0;
}

/* Tag pills */
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  flex: 1;
}

/* Search */
.filter-search {
  margin-left: auto;
  flex-shrink: 0;
}

.search-input {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  padding: 7px 14px;
  width: 200px;
  transition: border-color var(--t-fast), width var(--t-base);
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  border-color: var(--gold-border);
  width: 260px;
}

@media (max-width: 768px) {
  .projects-filters .container { flex-direction: column; align-items: flex-start; }
  .filter-search { margin-left: 0; width: 100%; }
  .search-input  { width: 100%; }
  .search-input:focus { width: 100%; }
}

/* ── Projects main area ────────────────────────────────────── */
.projects-main {
  padding-block: var(--sp-10) var(--sp-24);
}

.projects-meta {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: var(--sp-6);
}

/* ── Project grid ──────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--sp-4);
}

/* ── Project card (listing version) ───────────────────────── */
.pcard {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--t-base), transform var(--t-base),
              background var(--t-base);
  cursor: pointer;
  position: relative;
}

.pcard::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 2px; height: 0;
  background: linear-gradient(to bottom, var(--crimson), var(--gold));
  transition: height var(--t-slow);
}

.pcard:hover {
  border-color: var(--border-medium);
  background: var(--bg-elevated);
  transform: translateY(-3px);
}

.pcard:hover::before { height: 100%; }

/* Thumbnail */
.pcard__thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--bg-elevated);
  display: block;
}

/* Thumbnail placeholder when no image */
.pcard__thumb-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
}

.pcard__thumb-placeholder span {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Body */
.pcard__body {
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  flex: 1;
}

.pcard__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pcard__category {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--crimson-soft);
}

.pcard__year {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.pcard__title {
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.3;
}

.pcard__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.pcard__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--border);
}

.pcard__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--sp-3);
}

.pcard__link {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  transition: gap var(--t-fast), color var(--t-fast);
}

.pcard:hover .pcard__link {
  gap: var(--sp-3);
  color: var(--gold-soft);
}

/* Status badge */
.status-badge {
  font-size: 10px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.status-badge--complete {
  color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.2);
}

.status-badge--in-progress {
  color: var(--gold);
  background: var(--gold-dim);
  border: 1px solid var(--gold-border);
}

.status-badge--archived {
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
}

/* ── Empty state ───────────────────────────────────────────── */
.projects-empty {
  text-align: center;
  padding-block: var(--sp-24);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-6);
}

.projects-empty__text {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 640px) {
  .projects-grid { grid-template-columns: 1fr; }
}